(4)
Depressurize the reservoir of the Green hydraulic system (Ref. TASK 29-14-00-614-001).
(5)
Put the container under the filter to collect any hydraulic fluid.
4. Procedure
_________
(Ref. Fig. 301/TASK 29-16-11-991-001) Subtask 29-16-11-020-050
A. Removal of the Filter Element
(1)
Cut and remove the lockwire between the filter bowl (3) and the filter head (1).
(2)
Remove the filter bowl (3) together with the filter element (2).
(3)
Remove the filter element (2) together with its O-ring from the filter bowl (3).
(4)
Discard the filter element (2) and the O-ring. Subtask 29-16-11-560-050
B.
Preparation for Installation
(1)
Lubricate the O-ring of the new filter element (2) with HYDRAULIC FLUIDS (Material No. 02-003).
(2)
Lubricate the threads of the filter bowl (3) with HYDRAULIC FLUIDS (Material No. 02-003).
(3)
If the red clogging indicator (4) is out, push it in to set it again. Subtask 29-16-11-420-050
C.
Installation of the Filter Element
(1)
Clean the component interface and/or the adjacent area.
(2)
Do an inspection of the component interface and/or the adjacent area.
(3)
Do a check of the filter element (2) and make sure that it is clean and not damaged.
(4)
Install the filter element (2), together with its O-ring, in the filter bowl (3).
(5)
Engage the filter bowl (3) in the filter head (1) and tighten it. NOTE : Tighten the filter bowl with your hands only.
____
R HP Filter Figure 301/TASK 29-16-11-991-001
1EFF : 1 1 1CES ALL 1 111 29-16-11 Page 304 Aug 01/04
Subtask 29-16-11-790-051
D. Test of the Filter Assembly
(1)
Remove the blanking cap from the reservoir fill valve 1698GM.
(2)
Connect the flexible hose 1699GM to the fill valve.
(3)
Put the end of the flexible hose into a container of HYDRAULIC FLUIDS (Material No. 02-003).
(4)
Make sure that the reservoir filling selector 1134GQ is set to 'N'.
(5)
Operate the hand pump through three or four cycles to pressurize the filter.
NOTE : A Pressure relief valve in the filling selector valve will
____ operate if too much pressure is put into the system. If this happens, a small amount of fluid will go into the reservoir of the Yellow system.
(6)
Make sure that no fluid comes out of the filter.
(7)
Make sure that the clogging indicator stays in.
(8)
Momentarily set the reservoir filling selector to any one of the reservoir positions (G, Y or B) to release the hydraulic pressure.
(9)
Set the reservoir filling selector to position 'N'.
(10)
Disconnect the flexible hose and put it into its position in the ground service panel of the Green system.
(11)
Install the blanking cap on the reservoir fill valve.
5. Close-up
________ Subtask 29-16-11-860-051
A. Put the aircraft back to the serviceable condition.
(1)
Safety the filter bowl (3) to the filter head (1) with lockwire 0.8 mm (0.032 in.).
(2)
Remove the container from below the filter.
(3)
Pressurize the reservoir of the Green hydraulic system (Ref. TASK 29-
14-00-614-002).
(4)
Remove the warning notices from the cockpit and from the ground service panel.
Subtask 29-16-11-410-051
B. Close Access
(1)
Make sure that the work area is clean and clear of tool(s) and other items.
(2)
Close the access panel 197CB.
TASK 29-16-11-960-001 Replacement of the Clogging Indicator WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING
_______
GEAR.
WARNING : MAKE SURE THAT THE TRAVEL RANGES OF THE FLIGHT CONTROL SURFACES ARE
_______
CLEAR BEFORE YOU PRESSURIZE/DEPRESSURIZE A HYDRAULIC SYSTEM.
WARNING : OBEY THE HYDRAULIC SAFETY PROCEDURES.
_______
1.
Reason for the Job
__________________
Self Explanatory
2.
Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
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